Method of making gate valves and similar bodies



June 8,1926. 1,588,226

E. F. HOLINGER METHOD OF MAKING GATE VALVES AND SIMILAR BODIES F'iied Oct. 2, 1924 INVENTOR.

L-W/l f'HOA/NGZ'R' Patented June 8, 1926.

UNITED STATES PATENT OFFICE.

EMIL F. HOLINGER, OF JERSEY CITY, NEW JERSEY, ASSIGNOR TO THEM. W. KELLOGG COMPANY, on NEW YORK, N. Y.,

A CORPORATION OF DELAWARE METHOD OF MARIN G GATE VALVES LAND SIMILAR BODIES.

Application filed October 2, 1924. Serial No. 741,202.

This invention relates to a method of making gate valve bodies from steel and similar materials in which a solid billet or ingot is formed by drop forging, hydraulic forging or in any other suitable way into the desired form, holding the formed ingot in a suitable die conforming to the exterior shape to be produced and forming opposing valve seats and the neck of the valve by displacing the metal with a punch through an opening in the side of the die.

An object of my invention is to provide a simple and eiiicient method whereby devices of this character may be readily and economically manufactured.

My invention will-be better understood from the following description taken in connection with the accompanying drawings and'its scope will be pointed out in the appended claims.

. In the drawings illustrating my invention:

Fig. 1 is a side view of one type of the forging.

Fig. 2 is a side view of another type of the forging.

Fig. 3 is a view of the punching apparatus with parts broken away showing the die n vertical section with a forging therein in elevation.

Fig. 4 is a vertical longitudinal sectional view of a valve casing as it leaves the punching apparatus, and Fig. 5 is a plan view of the valve casing of Fig. 4.

Referring to the drawings in which the numeral 1 indicates a solid billet or ingot which has been formed by drop forging, hydraulic forging or in any other suitable way, into the desired shape. To illustrate my invention, I have shown a forging having a relatively large central mass indicated at 2, with lateral cylindrical portions 3, 4, extending from opposite sides. The precise form of the forging is not material, but it is desirable that the part 2 which is to be pierced to form the valve seats be of sulficient mass for displaced metal to form the valve neck. The mass 2 may be formed with a small lower end 2' extending beyond the lower edges of parts 3 and 4, as shown in the body of t p s tioned 11 ne s of the r c t r i e Fig. 1, or the lparts 3 and 4 may constitute e foiging with the mass 2 as shown in Fig. 2. The mass 2 may assume many. differentforms.- The forging 1, which may be either of the types shown, or other suitable types, is placed in a split die conforming to the exterior shape of the forging and with such additional conformations as are desired on the article to be produced. The lower part 6, of die 5, is

provided with a suitable depression 7 centrally positioned with respect to central mass 2 of forging 1 in which the lower part of the valve casing is formed. The upper part 8 of die 5 has a central opening 9, of any desired shape, preferably circular in cross-section and in alinement with the depression 7. The shape and size of the valve neck is determined respectively by the crosssection contour and by the diameter of opening 9. The opening 9 is positioned below a punch or piercing tool 10, operated by hydraulic or able means, not shown in the drawings, and may be supported by the upright bars or posts 11 if desired. The punch or tool in the present instance is circular in crosssection at its upper end andof smaller diameter-than opening 9 of die 5, the difference in sizes determining the thickness of the wall of the valve neck. The lower end of tool 10 is cut away on opposite sides as shown at 11, 12, at an angle tapering toward the lower end and small shoulders'are formed at 13, 14. Opposite each other and between the cut away parts, the tool 10 is ptpglded with grooves, one of which is shown a v..-

After the forging 1 has been placed within die 5 as shown in Fig. 3, the piercing tool 10 is forced into the die under hea pressure, which causes the material of the ingot to flow into the depression 7 andneck 18, shoulders 19, within the. valve"- neck at the lower end thereof and inner guide flanges 21 and 22. An opening, as indicated in dotted lines at 23, may now be drilled or bored through the body thus m n y su t b m nn r a d he mechanical pressures or other suit- 7 neck 18 may be threaded as indicated in dotted lines at 24.

From a consideration of the above description, taken in connection with the drawings, my invention will be apparent without further description. I do not wish to be understood as being limited to the details of form or arrangement of parts herein set forth, for various changes may be made by those skilled in the art without departing from the spirit or scope of my invention.

What I claim and desire to protect by Letters Patent is:

1. The method of making gate valve bodies from steel and similar materials which comprises first forming a solid ingot into substantially the external shape of the valve body by forging, holding the same in a die having a lateral opening, forcing a punch into said die through said opening, said punch having a-portion adapted to form opposing valve seats and another portion adapted to form vthe neck of the valve, thereby causing the metal to be displaced and flow into the upper portion of said die to form the neck of the Valve, and then cutting a passage through the connecting portions of said valve body.

2. The methodof making gate valve bodies from steel and similar materials which comprises first forging an ingot into substantially the external shape of the valve body, holdin able die con orming to the exterior shape thereof, said die having a lateral opening, and then forming opposing valve seats and a neck on said solid body by piercing the same through said lateral opening with a unch having valve seats and valve neck orming portions thereon, thereby causing displaced metal to flow into said neck ortion of said die to form the valve nee: in

the solid forging in a suit said lateral opening, and then cuttng a passage through the connecting portions of said valve body.

3. The method of making gate valve bodies from steel and similar materials which comprises first forging a solid ingot into substantially a valve body having an en larged central mass, holding the ingot in a correspondingly shaped die having a lateral opening, the enlarged mass being positioned below said opening, and forcing a punch into the die through said opening, said punch having a tapering portion adapted to form opposing inclined valve seats and another portion adapted to form the neck of the valve, thereby causing the metal from the mass to be displaced and flow into the upperportion of said die to form the neck of the valve, and then cutting a passage through the connecting portions of said valve body.

4. The method of making gate valve bodies from steel and similar materials which comprises first forging a solid ingot into substantially a valve body having a central enlarged portion and oppositely extending fully shaped members, holding the ingot in a correspondingly shaped die having a lateral opening, the central mass being below said opening, and forcing a punch into said die through said opening, said punch having a wedge-shaped portion adapted to form converging valveseats and another portion adapted to form the neck of the valve, whereby the metal will flow from the central mass into the upper portion of said die to form the neck of the valve, and then cutting openings through said oppositely extending members to communicate with the valve seats and neck so formed.

EMiL r. HOLINGER. 

